In an electric motor, a coil with 112 turns of radius 2.40 cm can rotate between the poles of a magnet. The magnetic field magnitude is 0.200 T. When the current through the coil is 46.4 mA, what is the maximum torque that the motor can deliver?
In an electric motor, a coil with 112 turns of radius 2.40 cm can rotate between the poles of a magnet. The magnetic field magnitude is 0.200 T. When the current through the coil is 46.4 mA, what is the maximum torque that the motor can deliver?
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter22: Magnetic Forces And Magnetic Fields
Section: Chapter Questions
Problem 28P
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Question 1)
a) In an electric motor, a coil with 112 turns of radius 2.40 cm can rotate between the poles of a magnet. The magnetic field magnitude is 0.200 T. When the current through the coil is 46.4 mA, what is the maximum torque that the motor can deliver?
b) A uniform magnetic field points north; its magnitude is 1.80 T. A proton with kinetic energy 5.30 × 10−13 J is moving vertically downward in this field. What is the magnetic force acting on it? If the force is toward east, enter a positive value.
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